0909c6a89a
Updates documentation, adds a move constructor to SQLParserResult, fixes compile-time warnings
64 lines
1.4 KiB
C++
64 lines
1.4 KiB
C++
#ifndef __SQLPARSER__SELECT_STATEMENT_H__
|
|
#define __SQLPARSER__SELECT_STATEMENT_H__
|
|
|
|
#include "SQLStatement.h"
|
|
#include "Expr.h"
|
|
#include "Table.h"
|
|
|
|
namespace hsql {
|
|
enum OrderType {
|
|
kOrderAsc,
|
|
kOrderDesc
|
|
};
|
|
|
|
|
|
// Description of the order by clause within a select statement.
|
|
struct OrderDescription {
|
|
OrderDescription(OrderType type, Expr* expr);
|
|
virtual ~OrderDescription();
|
|
|
|
OrderType type;
|
|
Expr* expr;
|
|
};
|
|
|
|
const int64_t kNoLimit = -1;
|
|
const int64_t kNoOffset = -1;
|
|
|
|
// Description of the limit clause within a select statement.
|
|
struct LimitDescription {
|
|
LimitDescription(int64_t limit, int64_t offset);
|
|
|
|
int64_t limit;
|
|
int64_t offset;
|
|
};
|
|
|
|
// Description of the group-by clause within a select statement.
|
|
struct GroupByDescription {
|
|
GroupByDescription();
|
|
virtual ~GroupByDescription();
|
|
|
|
std::vector<Expr*>* columns;
|
|
Expr* having;
|
|
};
|
|
|
|
// Representation of a full SQL select statement.
|
|
// TODO: add union_order and union_limit.
|
|
struct SelectStatement : SQLStatement {
|
|
SelectStatement();
|
|
virtual ~SelectStatement();
|
|
|
|
TableRef* fromTable;
|
|
bool selectDistinct;
|
|
std::vector<Expr*>* selectList;
|
|
Expr* whereClause;
|
|
GroupByDescription* groupBy;
|
|
|
|
SelectStatement* unionSelect;
|
|
std::vector<OrderDescription*>* order;
|
|
LimitDescription* limit;
|
|
};
|
|
|
|
} // namespace hsql
|
|
|
|
#endif
|